import httplib
import urllib2
import re
+import string
+import os
+import time
+import netrc
+import getpass
# First off, check Python and refuse to run
if sys.hexversion < 0x020400f0:
sys.exit('Error: Python 2.4 or later needed to run the program')
-# Exit status constants
-exit_failure = 1
-exit_success = 0
-
# Global constants
const_video_url_str = 'http://www.youtube.com/watch?v=%s'
-const_video_url_re = re.compile(r'http://(?:www\.)?youtube\.com/(?:v/|(?:watch(?:\.php)?)?\?v=)([^&]+).*')
-const_login_url_str = 'http://www.youtube.com/signup?next=/'
-const_login_post_str = 'current_form=loginForm&next=%%2F&username=%s&password=%s&action_login=Log+In'
+const_video_url_re = re.compile(r'(?:http://)?(?:www\d*\.)?youtube\.com/(?:v/|(?:watch(?:\.php)?)?\?v=)([^&]+).*')
+const_login_url_str = 'http://www.youtube.com/login?next=/watch%%3Fv%%3D%s'
+const_login_post_str = 'current_form=loginForm&next=%%2Fwatch%%3Fv%%3D%s&username=%s&password=%s&action_login=Log+In'
const_age_url_str = 'http://www.youtube.com/verify_age?next_url=/watch%%3Fv%%3D%s'
const_age_post_str = 'next_url=%%2Fwatch%%3Fv%%3D%s&action_confirm=Confirm'
const_video_url_params_re = re.compile(r'player2\.swf\?([^"]+)"', re.M)
const_video_url_real_str = 'http://www.youtube.com/get_video?%s'
+const_video_title_re = re.compile(r'<title>YouTube - ([^<]*)</title>', re.M | re.I)
const_1k = 1024
-const_block_size = 10 * const_1k
+const_initial_block_size = 10 * const_1k
# Print error message, followed by standard advice information, and then exit
def error_advice_exit(error_text):
- global exit_failure
sys.stderr.write('Error: %s.\n' % error_text)
sys.stderr.write('Try again several times. It may be a temporal problem.\n')
sys.stderr.write('Other typical problems:\n\n')
sys.stderr.write('Use the same video URL and account information, if needed, with this program.\n')
sys.stderr.write('When using a proxy, make sure http_proxy has http://host:port format.\n')
sys.stderr.write('Try again several times and contact me if the problem persists.\n')
- sys.exit(exit_failure)
+ sys.exit('\n')
# Wrapper to create custom requests with typical headers
def request_create(url, data=None):
retval = urllib2.Request(url)
- if not data is None:
+ if data is not None:
retval.add_data(data)
# Try to mimic Firefox, at least a little bit
- retval.add_header('User-Agent', 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.6) Gecko/20060728 Firefox/1.5.0.6')
+ retval.add_header('User-Agent', 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1) Gecko/20061010 Firefox/2.0')
retval.add_header('Accept-Charset', 'ISO-8859-1,utf-8;q=0.7,*;q=0.7')
retval.add_header('Accept', 'text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5')
retval.add_header('Accept-Language', 'en-us,en;q=0.5')
sys.stdout.write(str)
sys.stdout.flush()
+# Title string normalization
+def title_string_norm(title):
+ title = ''.join((x in string.ascii_letters or x in string.digits) and x or ' ' for x in title)
+ title = '_'.join(title.split())
+ title = title.lower()
+ return title
+
+# Generic download step
+def download_step(return_data_flag, step_title, step_error, url, post_data=None):
+ try:
+ cond_print('%s... ' % step_title)
+ data = perform_request(url, post_data).read()
+ cond_print('done.\n')
+ if return_data_flag:
+ return data
+ return None
+
+ except (urllib2.URLError, ValueError, httplib.HTTPException, TypeError):
+ cond_print('failed.\n')
+ error_advice_exit(step_error)
+
+ except KeyboardInterrupt:
+ sys.exit('\n')
+
+# Generic extract step
+def extract_step(step_title, step_error, regexp, data):
+ try:
+ cond_print('%s... ' % step_title)
+ match = regexp.search(data)
+
+ if match is None:
+ cond_print('failed.\n')
+ error_advice_exit(step_error)
+
+ extracted_data = match.group(1)
+ cond_print('done.\n')
+ return extracted_data
+
+ except KeyboardInterrupt:
+ sys.exit('\n')
+
+# Calculate new block size based on previous block size
+def new_block_size(before, after, bytes):
+ new_min = max(bytes / 2, 1)
+ new_max = max(bytes * 2, 1)
+ dif = after - before
+ if dif < 0.0001:
+ return new_max
+ rate = int(bytes / dif)
+ if rate > new_max:
+ return new_max
+ if rate < new_min:
+ return new_min
+ return rate
+
# Create the command line options parser and parse command line
cmdl_usage = 'usage: %prog [options] video_url'
-cmdl_version = '2006.09.25'
+cmdl_version = '2007.01.19'
cmdl_parser = optparse.OptionParser(usage=cmdl_usage, version=cmdl_version, conflict_handler='resolve')
cmdl_parser.add_option('-h', '--help', action='help', help='print this help text and exit')
cmdl_parser.add_option('-v', '--version', action='version', help='print program version and exit')
cmdl_parser.add_option('-o', '--output', dest='outfile', metavar='FILE', help='output video file name')
cmdl_parser.add_option('-q', '--quiet', action='store_true', dest='quiet', help='activates quiet mode')
cmdl_parser.add_option('-s', '--simulate', action='store_true', dest='simulate', help='do not download video')
+cmdl_parser.add_option('-t', '--title', action='store_true', dest='use_title', help='use title in file name')
+cmdl_parser.add_option('-n', '--netrc', action='store_true', dest='use_netrc', help='use .netrc authentication data')
(cmdl_opts, cmdl_args) = cmdl_parser.parse_args()
# Get video URL
if len(cmdl_args) != 1:
cmdl_parser.print_help()
- sys.exit(exit_failure)
+ sys.exit('\n')
video_url_cmdl = cmdl_args[0]
# Verify video URL format and convert to "standard" format
video_url = const_video_url_str % video_url_id
# Check conflicting options
-if not cmdl_opts.outfile is None and cmdl_opts.simulate:
+if cmdl_opts.outfile is not None and cmdl_opts.simulate:
sys.stderr.write('Warning: video file name given but will not be used.\n')
+if cmdl_opts.outfile is not None and cmdl_opts.use_title:
+ sys.exit('Error: using the video title conflicts with using a given file name.')
+
+if cmdl_opts.use_netrc and cmdl_opts.password is not None:
+ sys.exit('Error: using netrc conflicts with giving command line password.')
+
+# Incorrect option formatting
+if cmdl_opts.username is None and cmdl_opts.password is not None:
+ sys.exit('Error: password give but username is missing.')
+
+# Get account information if any
+account_username = None
+account_password = None
+
+if cmdl_opts.use_netrc:
+ try:
+ info = netrc.netrc().authenticators('youtube')
+ if info is None:
+ sys.exit('Error: no authenticators for machine youtube.')
+ netrc_username = info[0]
+ netrc_password = info[2]
+ except IOError:
+ sys.exit('Error: unable to read .netrc file.')
+ except netrc.NetrcParseError:
+ sys.exit('Error: unable to parse .netrc file.')
+
+if cmdl_opts.password is not None:
+ account_username = cmdl_opts.username
+ account_password = cmdl_opts.password
+else:
+ if cmdl_opts.username is not None and cmdl_opts.use_netrc:
+ if cmdl_opts.username != netrc_username:
+ sys.exit('Error: conflicting username from .netrc and command line options.')
+ account_username = cmdl_opts.username
+ account_password = netrc_password
+ elif cmdl_opts.username is not None:
+ account_username = cmdl_opts.username
+ account_password = getpass.getpass('Type YouTube password and press return: ')
+ elif cmdl_opts.use_netrc:
+ if len(netrc_username) == 0:
+ sys.exit('Error: empty username in .netrc file.')
+ account_username = netrc_username
+ account_password = netrc_password
+
# Get output file name
if cmdl_opts.outfile is None:
video_filename = '%s.flv' % video_url_id
if not video_filename.lower().endswith('.flv'):
sys.stderr.write('Warning: video file name does not end in .flv\n')
-# Verify both or none present
-if ((cmdl_opts.username is None and not cmdl_opts.password is None) or
- (not cmdl_opts.username is None and cmdl_opts.password is None)):
- sys.exit('Error: both username and password must be given, or none.')
-
# Test writable file
if not cmdl_opts.simulate:
try:
sys.exit('Error: unable to open %s for writing.' % video_filename)
# Install cookie and proxy handlers
-urllib2.install_opener(urllib2.build_opener(urllib2.HTTPCookieProcessor()))
urllib2.install_opener(urllib2.build_opener(urllib2.ProxyHandler()))
+urllib2.install_opener(urllib2.build_opener(urllib2.HTTPCookieProcessor()))
-# Login and confirm age if needed
-if not cmdl_opts.username is None:
- try:
- # Log in
- cond_print('Logging in... ')
- perform_request(const_login_url_str, const_login_post_str % (cmdl_opts.username, cmdl_opts.password)).read()
- cond_print('done.\n')
-
- except (urllib2.URLError, ValueError, httplib.HTTPException, TypeError):
- cond_print('failed.\n')
- error_advice_exit('unable to login')
-
- except KeyboardInterrupt:
- sys.exit('\n')
-
- try:
- # Get age confirmation cookie
- cond_print('Confirming age... ')
- perform_request(const_age_url_str % video_url_id, const_age_post_str % video_url_id).read()
- cond_print('done.\n')
-
- except (urllib2.URLError, ValueError, httplib.HTTPException, TypeError):
- cond_print('failed.\n')
- error_advice_exit('unable to confirm age')
+# Log in and confirm age if needed
+if account_username is not None:
+ url = const_login_url_str % video_url_id
+ post = const_login_post_str % (video_url_id, account_username, account_password)
+ download_step(False, 'Logging in', 'unable to log in', url, post)
- except KeyboardInterrupt:
- sys.exit('\n')
+ url = const_age_url_str % video_url_id
+ post = const_age_post_str % video_url_id
+ download_step(False, 'Confirming age', 'unable to confirm age', url, post)
# Retrieve video webpage
-try:
- cond_print('Retrieving video webpage... ')
- video_webpage = perform_request(video_url).read()
- cond_print('done.\n')
+video_webpage = download_step(True, 'Retrieving video webpage', 'unable to retrieve video webpage', video_url)
-except (urllib2.URLError, ValueError, httplib.HTTPException, TypeError):
- cond_print('failed.\n')
- error_advice_exit('unable to download video webpage')
-
-except KeyboardInterrupt:
- sys.exit('\n')
+# Extract video title if needed
+if cmdl_opts.use_title:
+ video_title = extract_step('Extracting video title', 'unable to extract video title', const_video_title_re, video_webpage)
# Extract needed video URL parameters
-try:
- cond_print('Extracting video URL parameters... ')
- video_url_params_mo = const_video_url_params_re.search(video_webpage)
-
- if video_url_params_mo is None:
- cond_print('failed.\n')
- error_advice_exit('unable to extract URL parameters')
-
- video_url_params = video_url_params_mo.group(1)
- video_url_real = const_video_url_real_str % video_url_params
- cond_print('done.\n')
-
-except KeyboardInterrupt:
- sys.exit('\n')
+video_url_params = extract_step('Extracting video URL parameters', 'unable to extract URL parameters', const_video_url_params_re, video_webpage)
+video_url_real = const_video_url_real_str % video_url_params
# Retrieve video data
try:
if cmdl_opts.simulate:
sys.exit()
- cond_print('Retrieving video data... ')
video_file = open(video_filename, 'wb')
try:
- video_len_str = '%sk' % to_k(int(video_data.info()['Content-length']))
+ video_len_str = '%sk' % to_k(long(video_data.info()['Content-length']))
except KeyError:
video_len_str = '(unknown)'
byte_counter = 0
- video_block = video_data.read(const_block_size)
- while len(video_block) != 0:
- byte_counter += len(video_block)
- video_file.write(video_block)
+ block_size = const_initial_block_size
+ while True:
cond_print('\rRetrieving video data... %sk of %s ' % (to_k(byte_counter), video_len_str))
- video_block = video_data.read(const_block_size)
+ before = time.time()
+ video_block = video_data.read(block_size)
+ after = time.time()
+ dl_bytes = len(video_block)
+ if dl_bytes == 0:
+ break
+ byte_counter += dl_bytes
+ video_file.write(video_block)
+ block_size = new_block_size(before, after, dl_bytes)
video_file.close()
cond_print('done.\n')
cond_print('Video data saved to %s\n' % video_filename)
- sys.exit()
except (urllib2.URLError, ValueError, httplib.HTTPException, TypeError):
cond_print('failed.\n')
except KeyboardInterrupt:
sys.exit('\n')
+
+# Rename video file if needed
+if cmdl_opts.use_title:
+ try:
+ final_filename = '%s-%s.flv' % (title_string_norm(video_title), video_url_id)
+ os.rename(video_filename, final_filename)
+ cond_print('Video file renamed to %s\n' % final_filename)
+
+ except OSError:
+ sys.stderr.write('Warning: unable to rename file.\n')
+
+ except KeyboardInterrupt:
+ sys.exit('\n')
+
+# Finish
+sys.exit()
Rapsys Git / youtubedl / blobdiff